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Arrhenius equation

Posted: Thu Mar 12, 2020 6:09 pm
by Shanzey
What does the A value in the Arrhenius equation mean? Also when do we use this equation?

Re: Arrhenius equation

Posted: Thu Mar 12, 2020 6:10 pm
by Naneeta Desar 1K
A is the frequency of collisions with the correct orientation.

Re: Arrhenius equation

Posted: Thu Mar 12, 2020 6:29 pm
by aishwarya_atmakuri
A is a variable that represents the proportion of interactions that have the minimum activation energy and are in the right orientation.

Re: Arrhenius equation

Posted: Thu Mar 12, 2020 7:53 pm
by Jared_Yuge
You use the Arrhenius equation when you need to determine the effect of a temp change on the rate constant, which changes the overall reaction rate.

Re: Arrhenius equation

Posted: Thu Mar 12, 2020 7:54 pm
by Jared_Yuge
The rate constant is proportional to the reaction rate so if rate constant doubles so does the reaction rate.

Re: Arrhenius equation

Posted: Fri Mar 13, 2020 10:58 am
by Matt F
A is considered the frequency factor or "pre-exponential" factor and includes the number of collisions with correct orientation. The Arrhenious equation is typically used with problems involving activation energy